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Helen [10]
4 years ago
6

Why is hydrogen placed with the elements in group 1a??

Chemistry
1 answer:
N76 [4]4 years ago
5 0
Because it has atomic no. = 1 (according to modern periidic table)
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That would be 2.51293615

Explanation:

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Ernest Rutherford performed an experiment in which he passed alpha particles through a thin gold foil sheet. Through this sheet some of the particles passed on to the other side but some of them were reflected back.

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